The J157 Series of Automatic Refractometers
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Laboratory Flexibility with Industrial Strength and Simplicity The J157 Series of Automatic Refractometers Rudolph Research Analytical serving its customers with Integrity, Quality, and Innovation for over fifty years.

The Rudolph Advantage The New J157 Series of Automatic Refractometers from Rudolph Research Analytical bring together Exclusive features that provide unmatched performance to improve your process. Sample Quality Calibration Reference Materials CRM’s are available at various RI indexes and Temperatures. Contact a customer service representative for assistance in choosing a calibration standard that is right for your application. We can also include a range of 5 NIST Tracable CRMs at time of purchase. The J157Plus with Smart MeasureTM checks the quality of the measurement and can provide...

Interface Flexibility Three Displays Allow For Three Interface Solutions Rudolph allows the lab manager to select from different display options because we understand laboratories and manufacturing floors have different needs when it comes to the information required for monitoring a process. Your instrument’s interface can be customized to meet the information your application and environment demand whether you choose our full featured interface or our Load-and-Go™ display interface. The J157 Series offer laboratory flexibility with industrial strength and simplicity making this model...

Temperature Controlled Concave (CC) Sample Covers and Pressers Rudolph Research Analytical’s J157 is able to control temperature quickly and accurately because it has a unique dual temperature control system where heating or cooling is applied to both sides of the sample. The (CC) Concave Sample Cover is controlled to the same temperature as the prism and, when lowered, is designed to provide a temperature controlled micro environment that provides unrivaled temperature stability, fast measurement time and minimal evaporation. Optional Contact Presser (CP Presser) The J157 Series are...

Measurement Surface Ultra Hard Sapphire Prism Other manufacturer’s compromise From the pictures below one can see that other manufacturers have to make a compromise with the depth and angle of the sample well. Since these manufacturers use one sample well and cover design for all temperature applications, they end up with a sample well that is too narrow and deep. The deep sample well makes cleaning needlessly hard at ambient temperature while failing to provide ideal temperature control when the sample and air temperature are more than 10°C from the desired measurement temperature. Some...

Strip Impact Printers have the following advantages: • Small footprints • Do not use thermal paper • Designed for rough • Industrial product with long model life, so that industrial environments the printer is often available for many years Rudolph Research Analytical 55 Newburgh Road, Hackettstown, NJ 07840 USA • Phone: 973-584-1558 • Fax. 973-584-5440 • E-mail: info@rudolphresearch.com • Internet: www.rudolphresearch.com